Machine for brushing earthenware.



W. POLK.

MACHINE POE BRUSHING EARTHENWARE.

APPLICATION TILED MAR. 11. 1908.

Patented Feb.15, 1910.

2 SHEETS-SHEET 1.

INVENTOR.

WITN ESSES.

W ogo I khUQJ-i- W. POLK.

MACHINE FOB. BRUSHING EARTHENWAEE.

APPLICATION TILED MAR. 11, 1908.

y Patented Feb. 15, 1910.

2 SHEETS-SHEET 2.

FIG. 3

FIG. 4

FIG.5

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WITNESSES. mw

WILLIAM POLK,

015 EAST LIVERPOOL, OHIO.

MACHIIiE FOR BRUSHING EARTHENWARE.

Specification of Letters Patent. Pat nted Feb. 15, 1910.

Application filed March 11, 1808. Serial No. 420,372.

1'0 all whom it may concern:

lie it known that I, WXLLIAM Pour, a resident of lfiast Liverpool, in the county of t'olumbiana and State of Ohio, have invented a new and useful Improvement in Machines for Brushing Earthenware; and I do hereby declare the following to be a fall, clear, and exact description thereof.

My invention relates to machines for brushing or cleaning earthenware before the glaze is applied thereto.

in the manufacture of earthenware in the form of plates, bowls, etc. it often happens that grains of sand or other small particles of foreign matter adhere to the surface of the plate and unless it is removed it. will produce a defect in the plate after the glaze lltls been applied and burned in, said particle appearing, in the form of a slight protuberance or spot on the plate.

The object of my invention is to provide asimple form of apparatus by means of which brushing of the ware can be done rapidly and atnmch less expense than heretofore where the cleaning of the ware was done by hand.

To these ends my invention comprises, gem-rally stated. a suitable frame with oppositely driven shafts mounted therein substantially in line with each other and brushes or other suitable polishing devices mounted on said shafts. the brushing faces of said brushes being contiguous to each other, and means for autolmltically feeding the ware to said brushes.

In the accompanying drawing Figure 1 is an end elevation of my improved machine: Fl". 2 is a side elevation partly in section: big. 3 is a plan view; Fig. l is an enlarged detail of the feeding: mechanism; and Fig. 5 is a perspective view of one of the brushes.

Referring to the drawings the numeral :2 designates a suitable bed-plate upon which is mounted the upright 3 which is stepped in the collar 4 on the bed-plate. Secure to the upright 3 are the sleeves I: with the bearinns 6 formed therein. Mounted on the uprights 3 and projecting out. therefrom are the arms 7 and 8, said arms having the bearings 9 and 10 respectively. A vertical shaft 11 is stepped in the collar 12 of the bed-plate and secured to said shaft is the pulley 13. The shaft 11 also fits within the bearing 9 of the arm 7. At the upper end of the shaft 11 is secured the brush 14: which may be formed in the form of a cross, as illustrated. This brush may be formed of bristles, or other suitable material. adapted to give the necessary cleaning action to the ware. The shaft 11 is vertically movable and a spring 11 is interposed between the pin 11 and the sleeve 9. A treadle l1 engages pins 11 on the collar 11 loosely mounted on said shaft 11. shaft 15 is mounted in the bearing 10 and the bearing 16 of the arm 17 on the shaft 3. The shaft l5 is also provided with the pulley 1S amt with brush 19 similar to the brush ii. The brushes 14 and 19, when in position, are in close proximity to each other so that the proper friction will be applied to the ware when inserted between said brushes, as fully hereinafter set. forth.

Stepped in the collar 19 of the bed-plate 2 is the upright 20 which has the collars Q1 and '22 secured thereto with bearings for the shafts Q3 and 24. The shaft 24 has the pulley 23 thereon which is driven by the belt 26. The shaft 24 has the pulley 27 which is connected up by the belt 28 to the pulley 29 on the shaft 23. Secured to the outer ends of the shafts 23 and 24 are the friction driving disks I10 and i; 'lhcsc disks 3t) and 2&1 contact with the pulleys 1:: and 1S and impart rotary movement to the shafts 11 and 1:"). As the disks 30 and 31 are driven in the same directions. it is apparent that the shafts 11 and 15 will be driven in opposite directions and consequently the brushes 14 and 1S.

Secured to the upright- 3 is the collar 3'2 secured by the thumb screw 33. said collar having an arm 34 projecting out therefrom, which arm carries the collar 35 adapted to receive the stem 36 of the shelf or support 37. thumb screw 38 is adapted to hold the shelf 37 in position. A second shelf 39 is supported in like manner by an arm 40 on the collar 32. 7

On the shaft 23 is the sprocket wheel 41 which is connected up to the sprocket wheel 42 by the. chain 43. The sprocket wheel -12 is mounted on the shaft 44 journaled in bearings in the standard 45 and in the hanger 46 of the arm 7. bevel pinion I on the shaft 44 meshes with a like pinion 48 on the vertical shaft 49. The shaft 49 is joun aled in beat-in s 50 in the arms 7 and 17. ()h the shaft -19 IS the adjustable sprocket wheel 1 keyed to said shaft and held in place thereon sprocket wheel 56 held in place by collars 57. At the lower end of the shaft 54: is the beveled pinion 58 which meshes with the like pinion 59 on shaft 44. Y

Secured to the shelf 37 is the cross piece 60 and journaled in bearings 61 on said cross piece are the vertical stub shafts 62 and 63. Sprocket wheels 64 and 65 are mounted on splines on said shafts and are held in place by collars 66.

Chains 67 and 63 engage the sprocket wheels 51 and (S4 and 56 and 63 respectively. These chains are made up of links and at suitable intervals in said chain are the links (39 with the fingers 70, as shown in Fig. 4.

\Vhen my improved machine is in use the ware to be cleaned is piled upon the outer end of the shelf 37 and power is applied to rotate the brushes 14: and 18, as well as drive the chains 67 and 68. The operator places a late on the shelf in position to be engaged by the fin ers 70 of the chains 67 and 68 and as said fingers come around they engage the edge of the plate at opposite sides and move same along said shel and insert it between the brushes 14 and 18 from the front of the machine and as said plate is forced between the brushes the abrading action of the brushes rotating in opposite directions acts to thoroughly clean the top and bottom of the plate so asto remove any imperfections in the way of roughness due to particles of sand, or other substance. Furthermore, by having the brushes rotating in o posite directions the late is acted on equa y by said brushes an the late is held between the brushes withouhhability of slipping therefrom. The plate is car ried through the brushes by the chains and discharged from the rear of the machine. The polishing is done very quickly and the plates ma follow each other in quick succession, t e operator simply placing the plates in position to be acted on by the con veyer, so that no time is lost.

What I claim as m invention is:

1. In apparatus ior brushing earthenware, the combination of a suitable frame,

shafts in line with each other, means for rotating same, brushes on said shafts opposed to each other, and a shelf or sup ort,

and endless conveyer chains at each s1 e of said shelf in position to engage the ware resting thereon.

2. In apparatus for brushing earthenware, the combination of a suitable frame, shafts in line with each other, means for rotating the same, brushes on said shafts o osed to each other, a shelf or support, endess conveyer chains at each side of said shelf, and over-hangng projections on said chains in position to engage'the ware resting on said shelf.

In testimony whereof, Ithe said TILLIAM POLK have hereunto set my hand.

YVILLIAlli POLK. Witnesses M. D. VOGEL, Roar. D. T orrax. 

